Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only):
a)no net force would act on a test charge located at P .
b)Q and q must be same sign but different magnitude.
c)the net work required to move a third charge from inifinity to point P is zero
d)Electric field at P is zero.
e)none of the above.

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